Heat repellent liners for freight cars



De:.A 24, 1957 A. A. ABRAMsoN 2,817,615

HEAT REPELLENT LINERs FOR FREIGHT CARS v Filed May 14, 1954 "ff BY ZATTO'RNEY 7 United States Patent O HEAT REPELLENT LINERS FOR FREIGHT CARS Alvin A. Abramson, St. Louis, Mo., assigner to Central States Paper & Bag Co., St. Louis, Mo., a corporation of lvlissouri Application May 14, 1954, Serial No. 429,848

1 Claim. (Cl. 154-44) This invention relates in general to certain new and useful improvements in carliners and, more particularly, to a heat repellent liner for freight cars and the like.

It has been found in the transportation industry that many materials are substantially sensitive to heat during shipment. For instance, waxed containers which are now widely used in the dairy industry as disposable milk bottles are fabricated at factories and shipped in freight cars or other large transportation vehicles many hundreds of miles to a point of use. During the summertime the freight cars or other transportation vehicles frequently stand in the sun for hours at a time and the interiors become very warm with the result that the wax impregnant used in making the bottle will begin to melt and run. There are other types of merchandise which are subject to the same hazard and, therefore, it is highly essential to provide some means by which a freight car or similar transportation vehicle can be effectively insulated against the suns rays.

Itis, therefore, the primary object of the present invention to provide a liner for freight cars and the like which can be inserted therein to insulate the interior of the car from the suns rays and, thereby prevent the contents from being subjected to damaging temperature.

It is another object of the present invention to provide a car liner of the type stated which is relatively economical in cost and can be quickly and conveniently applied to the interior of the freight car with a minimum of labor and related expense.

It is a further object of the present invention to provide a freight car liner of the type stated which is simple in construction, but, nevertheless, rugged and strong, so as to be capable of withstanding the shocks and other forces to which it will be subjected while the freight car is in motion.

With the above and other objects in view, my invention resides in the novel features of form, construction, arrangement, and combination of parts presently described and pointed out in the claim.

In the accompanying drawing (one sheet)- Figure 1 is a perspective view of a freight liner constructed in accordance with and embodying the present invention;

Figures 2 and 3 are fragmentary sectional views taken along lines 2 2 and 3 3, respectively, of Figure 1; and

Figure 4 is a perspective view of the freight car liner of the present invention shown in operative position within a freight car, the latter being merely shown schematically in dotted lines. v

Referring now in more detail and by reference characters to the drawing, which illustrates a preferred embodiment of the present invention, A designates a freight car liner which comprises preferably, though not necessarily, three lengthwise parallel strips of heavy kraft paper ICC 1, 2, 3, having one surface laminated with a thin layer or film of aluminum foil. It should be understood in this connection that the foil may also be made of any other bright, metallic or heat-reflective material and should 'oe laminated to the paper with a non-volatile odor free adhesive material. The three lengths of paper 1, 2, 3, are seamed together by lines of stitching and the seams are bound by lengths of binding tape t, all as best seen in Figure 2.

Adhesively secured to the paper-side of the sheet are a plurality of crosswise extending, relatively heavy strips of corrugated board b, arranged in spaced parallel alignment transversely of the car liner A, as shown in Figures l and 3.

The car liner A is then rolled up or folded up in any suitable manner for compactness in shipping to the point of use and, when used, is opened up and tacked, stapled, or otherwise secured along the interior surface of the roof of the freight car preferably with its edges folded over Slightly and downwardly, all as best seen in Figure 4. When inserted in the freight car, the aluminum foil will be facing upwardly so that the heat rays from the sun, which travel downwardly through the roof of the freight car, will be reflected upwardly and outwardly, thereby keeping the interior of the car relatively cool and protecting the merchandise being shipped.

It should be understood that changes and .modifications in the form, construction, arrangement, and combination of the several parts of the heat repellent liner for freight cars and the like may be made and substituted for those herein shown and described without departing from the nature and principle of my invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

A device for use in freight cars and similar vehicles to protect the contents from overheating due to the suns rays, said device consisting of an elongated rectangular sheet-like member having substantially greater length than width and consisting of a plurality of elongated sections of flexible paper having a top face and a bottom face, a exible metallic foil ply laminated upon the bottom face of each section, said sections being attached to each other by relatively wide-flanged seams extending downwardly below the bottom faces and bound with a U-shaped channel like strip secured around and enclosing the free edges of the same in such a manner that the seams may be folded up flatwise against the foil ply when the latter is rolled up for shipment and are also adapted to fold down into position substantially perpendicular to the plane of the sheet-like member to provide longitudinal reinforcement therefor when the liner is in use, and a plurality of spaced parallel reinforcing members adhesively secured to the top face of said sections and extending across the short dimension of the sheet-like member.

References Cited in the le of this patent UNITED STATES PATENTS 981,648 Hess Jan. 17, 1911 2,030,668 Weyerhaeuser et al Feb. 11, 1936 2,054,694 Eldredge Sept. 15, 1936 2,116,260 Corkran May 3, 1938 2,221,309 Gazelle Nov. 12, 1940 2,222,343 Wasserman Nov. 19, 1940 2,305,991 Price Dec. 22, 1942 2,444,183 Cahners lune 29, 1948 2,506,346 Crawford May 2, 1950 

